|1980||EDA business is started.|
|1982||VLSI Design System SX-8000 is released.|
|1990||ULSI Design System SX-9000 is released.|
|2002||New layout system Alpha-SX is released.|
|2004||Jedat Inc. is established.
Jedat takes over the EDA business of Seiko Instruments Inc.
|2007||Jedat Inc. is listed on the JASDAQ Market (code: 3841).|
|2009||Jedat Inc. is relocated to Nihonbashi Ningyo-cho, Chuo-ku, Tokyo its headquarter.|
|2010||As the JASDAQ Securities Exchange and Osaka Securities Exchange are amalgamated,
Jedat Inc. is listed on JASDAQ market of Osaka Securities Exchange.
|2011||Jedat Inc. is relocated to Higashi-Nihonbashi, Chuo-ku, Tokyo its headquarter.|
|2013||As cash equity market was integrated into the Tokyo Stock Exchange, Jedat was listed on JASDAQ market of Tokyo Stock Exchange.|
|2016||Custom Design Platform SX-Meister is released.|
|2017||Jedat Inc. is relocated to Minato, Chuo-ku, Tokyo its headquarter.|